Aspire.Hosting.PostgreSQL 13.0.0

Aspire.Hosting.PostgreSQL library

Provides extension methods and resource definitions for an Aspire AppHost to configure a PostgreSQL resource.

Getting started

Install the package

In your AppHost project, install the Aspire PostgreSQL Hosting library with NuGet:

dotnet add package Aspire.Hosting.PostgreSQL

Usage example

Then, in the AppHost.cs file of AppHost, add a PostgreSQL resource and consume the connection using the following methods:

var db = builder.AddPostgres("pgsql").AddDatabase("mydb");

var myService = builder.AddProject<Projects.MyService>()
                       .WithReference(db);

Connection Properties

When you reference a PostgreSQL resource using WithReference, the following connection properties are made available to the consuming project:

PostgreSQL server

The PostgreSQL server resource exposes the following connection properties:

Property Name Description
Host The hostname or IP address of the PostgreSQL server
Port The port number the PostgreSQL server is listening on
Username The username for authentication
Password The password for authentication
Uri The connection URI in postgresql:// format, with the format postgresql://{Username}:{Password}@{Host}:{Port}
JdbcConnectionString JDBC-format connection string, with the format jdbc:postgresql://{Host}:{Port}. User and password credentials are provided as separate Username and Password properties.

PostgreSQL database

The PostgreSQL database resource inherits all properties from its parent PostgresServerResource and adds:

Property Name Description
Uri The connection URI with the database name, with the format postgresql://{Username}:{Password}@{Host}:{Port}/{DatabaseName}
JdbcConnectionString JDBC connection string with database name, with the format jdbc:postgresql://{Host}:{Port}/{DatabaseName}. User and password credentials are provided as separate Username and Password properties.
DatabaseName The name of the database

Aspire exposes each property as an environment variable named [RESOURCE]_[PROPERTY]. For instance, the Uri property of a resource called db1 becomes DB1_URI.

Additional documentation

https://learn.microsoft.com/dotnet/aspire/database/postgresql-component https://learn.microsoft.com/dotnet/aspire/database/postgresql-entity-framework-component

Feedback & contributing

https://github.com/dotnet/aspire

*Postgres, PostgreSQL and the Slonik Logo are trademarks or registered trademarks of the PostgreSQL Community Association of Canada, and used with their permission.

No packages depend on Aspire.Hosting.PostgreSQL.

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13.0.1 0 11/26/2025
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